Iturnoria Evans, 1954 a: 109

Zahniser, J. N. & Nielson, M. W., 2012, An extraordinary new genus and three new species of Acostemmini (Hemiptera: Cicadellidae: Deltocephalinae) from Madagascar with comments on the morphology and classification of the tribe, Zootaxa 3209 (1), pp. 28-52 : 45-47

Iturnoria Evans, 1954 a: 109 new placement

( Figs. 63–70 )

Type species: Iturnoria insulana Evans 1954 a: 110

Description. Length of male holotype 5.3 mm, female 5.6 mm.

General color dull yellow-orange with five black longitudinal stripes on pronotum, mediolateral stripes extending across mesontum angles and 1/2 of clavus, central stripe divided across mesonotum and rejoined at commissural line of clavus, ending at its apex, lateral stripes continuing to base of forewing with R and M veins concolorous; crown with two large black spots near anterior margin next to eyes above ocelli; face dull orange with numerous black markings including longitudinal black stripe running length of frontoclypeus (Figs. 63,64).

Head. Head distinctly narrower than pronotum; median width about 2x median length; anterior margin broadly obtuse; crown about as wide as eye width; lateral margins of crown convergent basally; ocelli near eyes on anterior margin of head; anterior margin with a distinct ridge between ocelli; crown with median transverse ridge posterad of ridge between ocelli ( Fig. 63 ). Antennal ledges distinctly carinate. Frontoclypeus long, narrow; without median longitudinal carina; texture shagreen. Clypellus strongly widening from base to apex; apical margin emarginate. Lora somewhat small; wider than clypellus near base; ventral margins distant from genal margin. Genae very broad; slightly sinuate laterally; visible behind eyes in dorsal view; ventrally with striate or wrinkled texture.

Thorax. Pronotum median length about twice as long as median length of crown, surface with tiny pits and deep transverse striations. Mesonotum moderately large, median length less than median length of pronotum (Figs. 63,64).

Wings. Forewings with 3 closed anteapical cells; appendix absent or reduced; base of clavus between A1 and claval suture and apex of vein A1 thickened, milky white in color; A1 and A2 nearly touching medially; veins dark brown and thicker proximally, orangish and thinner apically (Figs. 63,64).

Legs. Protrochanter with stout apical seta. Profemur row AV with short stout setae for entire length of femur; AV1 not distinct; intercalary row with long somewhat thicker setae extending to midlength of femur; row AM with only AM1. Protibia rounded dorsally; row AD with 1 apical seta; row PD with 3–4 macrosetae. Mesotrochanter with stout apical PV seta; with other scattered small setae. Mesofemur very thick, stout; row AV with somewhat longer close-set setae for entire length. Metafemur apex 2+2+1 with penultimate pair close-set. Metatibia row PD setae nearly equal in length, not alternating; row AD macrosetae alternating with smaller intercalary setae; pecten setae nearly equal in length. Metatarsomere I plantar surface with two rows of small stout setae; apex with 6 platellae.

Female. Pygofer with macrosetae ventrally and apically. First valvulae fused basally; convex; dorsal sculpturing pattern concatenate, reaching dorsal margin. Second valvulae somewhat broad throughout; with dorsal teeth for nearly entire length; teeth taller than in Caelidioides, more close-set, not serrate. Third valvula without macrosetae.

Male. Pygofer subquadrate, produced posteroventrally; incised dorsally nearly to base; dorsal margin thickened, sloping toward posteroventral apex; posteroventral apex with distinct darkly sclerotized peg-like knob; without macrosetae (Figs. 68,69). Valve long, ovate; fused to subgenital plates ( Fig. 70 ). Subgenital plates fused throughout most of length, separate apically; with few fine setae apically ( Fig. 70 ). Connective somewhat Tshaped; anterior arms short, broad, widely diverging; with anteromedial lobe; stem long, diverging into two short arms posteriorly; articulated with aedeagus ( Fig. 65 ). Style not broadly bilobed basally, median anterior lobe not pronounced; anterior half consisting of one long slender curved sclerite; posterior half appearing to consist of 2 sclerotized parts, large basal part curled anterolaterally and spade-like posteriorly, smaller apical part somewhat diamond-shaped and flanged and textured at apex ( Fig. 65 ). Aedeagus with pair of slender acuminate processes fused to base, arising ventrally and curving dorsally; shaft compressed, somewhat sinuate; gonopore apical; with pair of short apical processes arising dorsally and projecting anteriorly (Figs. 66,67). Segment X sclerotized dorsally as narrow distal band; sclerotized more broadly at ventral margin, tapering dorsally (Figs. 68,69).

Distribution. Madagascar.

Material examined. Holotype ♂ ( MNHN): Antsinguy, N. 63 km. Est Maintiramo, Inst. Scient. Madagascar, foret, VII-HG, RP./ Museum Paris NHN ( EH), 2700/ Type / Iturnoria insulana Evans, J.W. Evans det. 1952. 1 ♀ ( CAS): MADAGASCAR: Antsiranana Forét Ambato , 26.6 km 33° NE Ambanja, elev 150 m, 8 December 2004, 13°27'52"S 048°33'06"E, California Acad. of Sciences , coll: B. L.Fisher, rainforest, malaise trap, BLF11518. Genomic DNA was extracted from the hind legs, metathoracic muscles, and abdomen of the recently collected female, and bears a DNA Voucher label with the number DEL 132.

Figures

FIGURES 63–70. Iturnoria insulana Evans, male holotype. 63. dorsal habitus; 64. lateral habitus; 65. connective and style, ventrally; 66. aedeagus, laterally; 67. aedeagus, caudally; 68. pygofer, laterally; 69. pygofer, dorsally; 70. valve and subgenital plates, ventrally.